Aspects of preheating after inflation
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Aspects of preheating after inflation

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Published .
Written in English

Subjects:

  • Physics Theses

Book details:

Edition Notes

Thesis (Ph.D.), Dept. of Physics, University of Toronto

ContributionsKofman, Lev (supervisor)
The Physical Object
Pagination133 p.
Number of Pages133
ID Numbers
Open LibraryOL18979839M
ISBN 100612690709

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Aspects of Preheating after Inflation. By Lev Kofman. Abstract. In inflationary cosmology, the particles constituting the Universe are created after inflation in the process of reheating due to the interaction with the oscillating inflaton field. We briefly review the basics of the slow reheating, and the stage of fast preheating, when the Author: Lev Kofman. In inflationary cosmology, the particles constituting the Universe are created after inflation in the process of reheating due to the interaction with the oscillating inflaton field. We briefly review the basics of the slow reheating, and the stage of fast preheating, when the particles are created explosively in the regime of parametric resonance.   We review several aspects of preheating after inflation. Topics covered include the structure of bosonic parametric resonance in conformal theories, the parametric excitation of fermions both with and without expansion of the universe, and tachyonic preheating at the end of supersymmetric hybrid : Patrick Bradley Greene. PREHEATING AFTER INFLATION Lev Kofman Institute for Astronomy, University of Hawaii Woodlawn Dr., Honolulu, HI , USA In inflationary cosmology, the particles constituting the Universe are created after inflation in the process of reheating .

Preheating after inflation may lead to nonthermal phase transitions with symmetry restoration. These phase transitions may occur even if the total energy density of fluctuations produced during.   3. Causes More Inflation. Unfortunately, the urge to spend and invest in the face of inflation tends to boost inflation in turn, creating a potentially catastrophic feedback loop. According to inflationary theory, (almost) all elementary particles populating the universe were created during the process of reheating of the universe after inflation [1]. It makes this process extremely important. However, for many years the theory of reheating remained the least developed part of inflationary theory. This book accompanies another book by the same authors, Introduction to the Theory of the Early Universe: Hot Big Bang Theory and presents the theory of the evolution of density perturbations and relic gravity waves, theory of cosmological inflation and post-inflationary reheating. Written in a pedagogical style, the main chapters give a.

  D. Battefeld, T. Battefeld, J.T. GiblinSuppression of parametric resonance and the viability of tachyonic preheating after multifield inflation Phys. Rev. D, 79 (), Article arXiv [].   Symmetry restoration processes during the non-equilibrium stage of “preheating” after inflation is studied. It is shown that symmetry restoration is v. Preheating after hilltop inflation is challenging due to the non-linear nature of the field dynamics: as the inflaton rolls down the potential and oscillates around the minimum, its fluctuations.   This book accompanies another book by the same authors, Introduction to the Theory of the Early Universe: Hot Big Bang Theory and presents the theory of the evolution of density perturbations and relic gravity waves, theory of cosmological inflation and post-inflationary reheating. Written in a pedagogical style, the main chapters give a detailed account of the established theory, with Reviews: 2.